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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 12 — Apr. 20, 2009
  • pp: 2243–2248

Pulse compression in an electro-optic Q-switched diode-pumped YVO 4 / Nd : YVO 4 laser with a Cr 4 + : YAG saturable absorber

Tao Li, Shengzhi Zhao, Zhuang Zhuo, Kejian Yang, Guiqiu Li, and Dechun Li  »View Author Affiliations


Applied Optics, Vol. 48, Issue 12, pp. 2243-2248 (2009)
http://dx.doi.org/10.1364/AO.48.002243


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Abstract

A diode end-pumped doubly Q-switched YVO 4 / Nd : YVO 4 laser has been realized for the first time to our knowledge by using both an electro-optic (EO) modulator and a Cr 4 + : YAG saturable absorber. A 3.8 ns pulse width is generated by this laser under a pump power of 15 W at 2 kHz , which is obviously compressed in comparison with that of 8.8 ns from a single actively EO Q-switched laser. Under the same conditions, peak power values of 174.7 and 93 kW are also obtained. A coupled equation is given to theoretically analyze the experimental data. The experimental and theoretical results show that the doubly Q-switched laser has the advantages of a shorter pulse width and higher pulse peak power in contrast with a singly Q-switched laser.

© 2009 Optical Society of America

OCIS Codes
(140.3430) Lasers and laser optics : Laser theory
(140.3540) Lasers and laser optics : Lasers, Q-switched
(140.3580) Lasers and laser optics : Lasers, solid-state
(230.2090) Optical devices : Electro-optical devices

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: December 3, 2008
Revised Manuscript: March 11, 2009
Manuscript Accepted: March 16, 2009
Published: April 14, 2009

Citation
Tao Li, Shengzhi Zhao, Zhuang Zhuo, Kejian Yang, Guiqiu Li, and Dechun Li, "Pulse compression in an electro-optic Q-switched diode-pumped YVO4/Nd:YVO4 laser with a Cr4+:YAG saturable absorber," Appl. Opt. 48, 2243-2248 (2009)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-48-12-2243


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